Vinstronics low-loss flexible RF cable with green FEP jacket for 40 GHz microwave routing and RF testing

40 GHz Low-Loss Flexible RF Cable L37

P/N: L37

  • Low-loss cable for high-power microwave routing
  • Green FEP jacket for easy identification
  • Low PIM path for base station systems
  • Robust shielding for RF test environments
  • Supports demanding 40 GHz interconnections
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Engineering Note
The L37 is a 40 GHz low-loss flexible RF coaxial cable designed for high-power microwave routing, base station interconnections, RF device testing, and system-level microwave assemblies where low attenuation, low PIM behavior, and reliable shielding are required. Its 3.75 mm green FEP jacket, LD PTFE dielectric, silver-plated copper strip inner shield, and silver-plated copper wire braid outer shield support stable signal transmission in demanding RF environments. The cable combines DC–40 GHz operating capability, -155 dBc low PIM performance, 1000 V.DC dielectric withstand voltage, and robust average power handling for higher-power microwave interconnect applications.

Technical Specifications

Cable Name L37
Product Type Low-Loss Flexible RF Coaxial Cable
Cable Structure 5-layer flexible RF cable with green FEP jacket
Operating Frequency DC–40 GHz
Cut-off Frequency 40 GHz
Impedance 50 ± 1 Ω
Velocity of Propagation 76%
Shielding Effectiveness >90 dB
Dielectric Withstanding Voltage 1000 V.DC
Low PIM Performance -155 dBc
Static Bending Radius 19 mm [0.748 in]
Dynamic Bending Radius 38 mm [1.496 in]
Weight 0.034 kg/m [0.0228 lbs/ft]
Temperature Range -55 to +165 °C [-67 to +329 °F]
Inner Conductor Silver-plated copper, 0.91 mm [0.036 in]
Dielectric Low Density PTFE, 2.70 mm [0.106 in]
Inner Shield Silver-plated copper strip, 2.85 mm [0.112 in]
Outer Shield Silver-plated copper wire braiding, 3.30 mm [0.130 in]
Jacket FEP / Green, customizable, 3.75 mm [0.148 in]
Attenuation 39.4 dB/100m @1 GHz; 56.0 dB/100m @2 GHz; 68.9 dB/100m @3 GHz; 98.2 dB/100m @6 GHz; 113.9 dB/100m @8 GHz; 127.9 dB/100m @10 GHz; 143.0 dB/100m @12.4 GHz; 173.7 dB/100m @18 GHz; 212.9 dB/100m @26.5 GHz; 265.0 dB/100m @40 GHz
Average Power 0.753 kW @1 GHz; 0.530 kW @2 GHz; 0.431 kW @3 GHz; 0.302 kW @6 GHz; 0.261 kW @8 GHz; 0.232 kW @10 GHz; 0.208 kW @12.4 GHz; 0.171 kW @18 GHz; 0.139 kW @26.5 GHz; 0.112 kW @40 GHz

Target Applications

Base Station Interconnects
Suitable for internal wireless communication routing where low PIM performance, power handling, and stable 40 GHz transmission are required.
High-Power RF Testing
Supports microwave device test setups that require lower attenuation, robust average power handling, and repeatable RF transmission paths.
Avionics RF Systems
Fits avionics routing environments where shielding effectiveness, temperature range, and mechanically flexible RF paths are important.
ECM System Routing
Used in electronic countermeasure assemblies requiring low-loss microwave interconnects with green jacket identification and stable shielding.

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